US4079708A - Control device for the engine of an engine driven saw - Google Patents

Control device for the engine of an engine driven saw Download PDF

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Publication number
US4079708A
US4079708A US05/663,157 US66315776A US4079708A US 4079708 A US4079708 A US 4079708A US 66315776 A US66315776 A US 66315776A US 4079708 A US4079708 A US 4079708A
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US
United States
Prior art keywords
linkage
selector member
control mechanism
mechanism according
lever
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US05/663,157
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English (en)
Inventor
Dieter Wieland
Klaus Hoppner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andreas Stihl AG and Co KG
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Andreas Stihl AG and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0008—Means for carrying the chain saw, e.g. handles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/02—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being chokes for enriching fuel-air mixture

Definitions

  • the present invention relates to a hand saw driven by an internal combustion engine, and in particular concerns a motor chain saw in which the output of the machine is adjustable by means of a gas pedal with an associated gas lever blocking device which acts upon a control member that is formed in particular by a throttle flap which is continuously urged in the direction toward its closing position.
  • the invention relates in particular to a saw of the above mentioned type in which the throttle flap has associated therewith as adjustable starting positions at least one starting position for the hot start and one for the cold start as well as an idling position of operation, to which the throttle flap can be moved from its hot start position by an adjustment in opening direction and elimination of the starting adjusting position, and in which there is provided a starter flap adjustable for the cold start and a short circuit position operated when changing over the engine to its stopping position.
  • FIG. 1 shows a longitudinal section through the rear portion of a motor chain saw according to the present invention.
  • FIG. 2 represents a cross section through the chain saw according to FIG. 1, said section being taken along the line II--II of FIG. 1 while in this illustration sections are included at the level of the longitudinal valve shaft and of the starter flap shaft.
  • FIG. 3 illustrates a top view in partially a section of the arrangement of FIG. 2.
  • FIG. 4 illustrates similar to that of FIG. 2 a further embodiment of the invention.
  • FIG. 5 is a top view of FIG. 4.
  • FIG. 6 represents a section taken along the line VI--VI of FIG. 2.
  • the object underlying the present invention has been realized according to the invention by the fact that for adjustment of the starting position of the position of operation, and of the stop position, there is provided a single selecting member which becomes effective when actuating the throttle valve flap and by means of which during the adjustment into the cold starting position, the starting flap is adapted to be closed.
  • This design in which the provided starting positions stop, operation, hot start, and cold start, are carried out by only one selector or selecting member is secured against accidental shifting from operation to the starting position by the fact that due to the cooperation of the selecting member with the actuation for the throttle flap, such shifting over will be possible only when simultaneously the block associated with the gas lever is disengaged through which block the gas lever is secured in its idling position.
  • Due to the combination of the different operating devices it is additionally possible to place the selector lever in an optimum position and in the vicinity of the gas lever which is naturally not possible when a plurality of such operating elements are provided.
  • the operation is additionally simplified by the fact that in combination with the throttle flap adjustment for the cold start position, simultaneously the starter flap is actuated so that corresponding operating errors will be excluded.
  • FIG. 1 shows that the only partially illustrated motor chain saw which includes an internal combustion engine as driving engine is supplied through a carburetor 1 with a fuel mixture having associated therewith a throttle flap and a starter flap of which only the respective shafts 2 and 3 are shown.
  • the throttle flap shaft 2 communicates in customary manner with a gas supply controlling linkage 4 which is connected to a gas lever 6 mounted in a handle-forming frame 5.
  • This lever 6 is pivotable about a shaft 7 which is parallel to the throttle flap shaft 2 and starter flap shaft 3, and with which there is associated a gas lever blocking device 8.
  • the arrangement is in customary manner so designed that the gas lever engages the bottom side of the handle part 9 of the handle-forming frame 5.
  • the gas lever blocking device which is pivotable about a shaft 10 substantially parallel to the shaft 7 projects upwardly beyond the handle part 9.
  • Gas lever blocking device 8 and gas lever 2 are respectively by means of a spring 11 urged toward their starting position.
  • the starting position of the gas lever corresponds to a position of operation corresponding to the idling position. From this position of operation, the gas lever can be shifted after depression of the gas lever blocking device 8, only in a direction which corresponds to the opening direction of the throttle flap (see arrow 12).
  • the linkage 4 comprises an angled-off and cranked section 13 in which it cooperates with an adjusting member 14 which, according to the embodiment of FIGS. 2 and 3 is formed by an adjusting lever integral with the shaft 15.
  • the adjusting member 14, the pivot shaft 15 of which is about parallel to the section 13 of the gas lever linkage and also about parallel to the shafts 2 and 7 is, by means of a selecting member 16 shiftable in the form of a selector lever which is non-rotatably connected to the adjusting member.
  • connection is effected through the intervention of member 15 serving as shaft, on which is mounted a starter lever 17 which is in engagement with the starter linkage 18 and which in response to the turning of shaft 15 is over a certain angle range shifted by a follower 19 associated with said shaft 15.
  • the design may expediently also be modified in such a way that the adjusting member cooperates directly with the gas lever and that the selecting lever simultaneously acts as adjusting lever and cooperates with the gas lever linkage or directly with the gas lever.
  • the above mentioned shifting range of the starter lever 17 corresponds to the adjusting range of the selecting lever 16 between the hot starting and cold starting positions of the latter.
  • These two hot starting and cold starting positions form the two last mentioned starting positions with regard to the opening direction of the throttle flap, to which the selecting lever is movable or adjustable.
  • the selecting lever is movable or adjustable.
  • four such adjustable starting positions and, more specifically, so that in a turning direction corresponding to the opening direction of the throttle flap, (see arrow 20) and following each other, the following positions -- a stop position, a position of operation corresponding to an idling position, and the already mentioned starting positions, namely the hot starting and cold starting positions.
  • the adjusting lever 14 according to FIGS. 2 and 3 is shown on a larger scale in FIG. 6 and as will be evident, is formed by a circular sector which adjacent to its front edge 21 is with regard to the opening direction of the throttle flap radially outwardly provided with a nose 22.
  • FIG. 6 shows that the gas lever linkage 4 which counter to the opening direction of the throttle flap is spring urged in the direction of the arrow 23, is by means of its section 13 in a position of operation supported through the intervention of the edge 21 of the adjusting lever 14. If lever 14 is shifted from the position of operation in the direction of arrow 20 to the hot start position, the nose 22 slides over the section 13 so that the latter on one hand has its nose 22 and on the other hand has its circumference 24 in engagement with the section 13.
  • the cold starting position shown in FIG. 6 in dot-dash lines is set, such returning position in the direction toward the position of operation is not obtained for the range between cold starting position and hot starting position. This is due to the fact that the returning spring due to its design and support becomes effective only from the hot starting position on.
  • the throttle flap can by actuating the gas lever 6 be opened further without an automatic change in the setting position for the selecting levers 16, in order for instance by opening the gas throttle to heat up the engine as quickly as possible.
  • the opening width of the throttle flap for hot starting and cold starting may be expedient to select the opening width of the throttle flap for hot starting and cold starting at different magnitudes, in other words, it may be expedient to be able to change the opening width of the throttle flap for hot starting and cold starting, respectively.
  • the cold starting position may also be advantageous for the cold starting position to provide an automatic returning of the throttle flap occurring in conformity with the actuation of the gas lever.
  • a short circut lever 27 arranged on shaft 15 is pivoted into a position in which a contact pin 28 arranged on said lever 27 will contact a contact spring 29 connected to mass or ground and will latch into said spring which, however, is not shown in the drawing.
  • the ignition is short circuited and remains short circuited also when the selector lever is released. Since, similar to the position of operation also in this stop position the gas lever can be actuated only with a simultaneous actuation of the gas lever blocking device 8, an accident adjustment of the selecting lever to one of the starting positions is impossible so that summarized after adjusting lever 16 to the stopping position, absolute assurance is obtained that the engine cannot accidentally be put into operation.
  • FIGS. 4 and 5 show a modification according to which the pivot shaft of selector member and adjusting member do not extend transverse to the displacement direction of the gas lever linkage but extend in about the displacing direction of the gas lever linkage.
  • the selecting lever 16' which serves as selecting member, it is therefore necessary that the rotary movement for adjusting the gas lever linkage 4' be transformed into a direction of movement which is about perpendicular to the pivoting direction.
  • This is effected according to FIGS. 4 and 5 through the intervention of a pivoting lever 30 which is located on the shaft 15' of the selecting lever 16'.
  • Pivot lever 30 is connected to an actuating rod 31 which in its turn is connected to an adjusting member 32 which is provided with an inclined plane 33.
  • the actuating linkage 31 is displaced toward the gas lever linkage 4' and the inclined plane 33 moves into operative connection with a cam 34 which is formed for instance by a loop of the linkage 4'.
  • the gas lever linkage 4' is displaced in opening direction of the throttle flap.
  • the cam 34 engages the surface 35 which is offset relative to the inclined plane 33 by means of step 36 so that analogous to the above described embodiment, for purposes of pivoting the selecting lever 16' from the hot starting position into the position of operation, the gas lever linkage 4' has first to be displaced in opposite direction of the throttle flap in order to free the adjusting member.
  • FIG. 5 particularly clearly indicates that in conformity with the contour of the surface 35, for the hot starting and cold starting position, the same opening width prevails for the throttle flap.
  • the same opening width prevails for the throttle flap.
  • the taking or adjustment of the starting flap when shifting the selecting lever from the hot starting to the cold starting position can be effected in a simple manner through the intervention of an angle lever 37.
  • This lever is pivotable about a shaft 38 which preferably extends at a right angle with regard to the displacement direction of the actuating linkage 31.
  • the lever 37 is provided with a coulisse 40 for a pivot 39 which is associated with the actuating linkage 31 and the adjusting member 32.
  • the length of the coulisse 40 is so dimensioned that the pivot 39 is freely displaceable up to a position which corresponds to the hot starting position and hits an abutment only in the hot starting position in such a way that when shifting from the hot starting position to the cold starting position, the angle lever 37 will be pivoted in closing direction of the starter flap.
  • the starter flap has also in this instance associated therewith a return spring 26 arranged on a shaft 3 so that during the return of the selecting lever 16' from the cold starting position, the starter flap will be opened automatically.
  • shaft 15' has directly associated therewith a contact pin 28' which is stopping positions comes into contact with a contact spring 29' connected to mass or ground, whereby the ignition of the engine is short circuited. Also, in this instance, between said contact spring 29' and the contact pin 28' there is provided a predetermined lock so that the short circuit will be retained also when the selector lever is freed.
  • an actuating device has been created for a motor chain saw in which in response to the actuation of the gas lever, automatically a return from the hot starting position to the position of operation is effected.
  • the arrangement may within the scope of the invention also be so designed that also from the cold starting position an automatic returning position will be provided for instance first only up to the hot starting position when the cold starting position and the hot starting position have different opening widths for the throttle flap.
  • the starting positions may from the position of operation be shifted only when simultaneously the gas lever block is depressed so that an accidental starting particularly in connection with the provided arrestable short circuit system in stopping position will be impossible. Due to the fact that the provided starting flap when shifting to the cold starting position is automatically closed, and furthermore due to the fact that according to a preferred embodiment of the invention, the cold starting position independently of the possible actuation of the gas lever linkage system is retained until an intentional returning action is effected, a particularly simple operation and handling of the machine will be assured while the invention is to an optimum extent adaptable to the respectively prevailing temperatures.
  • actuating device according to the invention also described above in connection with an exclusively throttle valve controlled engine.
  • a corresponding control can also be employed in connection with another type of output controlled internal combustion engine for instance in connection with internal combustion engines operating with suction pipe injection.
  • the actuating device according to the invention can also advantageously be used when only one starting position is provided.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
US05/663,157 1975-03-05 1976-03-02 Control device for the engine of an engine driven saw Expired - Lifetime US4079708A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2509443A DE2509443C2 (de) 1975-03-05 1975-03-05 Bedienungseinrichtung für den Brennkraftmaschinenantrieb von Handsägen, insbesondere von Motorenkettensägen
DT2509443 1975-03-05

Publications (1)

Publication Number Publication Date
US4079708A true US4079708A (en) 1978-03-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
US05/663,157 Expired - Lifetime US4079708A (en) 1975-03-05 1976-03-02 Control device for the engine of an engine driven saw

Country Status (5)

Country Link
US (1) US4079708A (de)
JP (1) JPS51111999A (de)
DE (1) DE2509443C2 (de)
FR (1) FR2302824A1 (de)
SE (1) SE427912B (de)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491105A (en) * 1982-03-22 1985-01-01 Ab Electrolux Motor Aktiebolag Arrangement in an i.c. engine
US4631153A (en) * 1983-09-06 1986-12-23 Kawasaki Jukogyo Kabushiki Kaisha Throttle control device for general purpose engine
US4773371A (en) * 1987-11-03 1988-09-27 Tecumseh Products Company Override speed control having governed idle
US4919091A (en) * 1988-06-29 1990-04-24 Andreas Stihl Ignition switch arrangement for an internal combustion engine having an electrical ignition system
US4936267A (en) * 1987-11-06 1990-06-26 Andreas Stihl Carburetor for an internal combustion engine
US5209196A (en) * 1991-05-18 1993-05-11 Andreas Stihl Operating-mode position selector arrangement for internal combustion engine
US5215049A (en) * 1991-06-21 1993-06-01 Andreas Stihl Portable handheld work apparatus
US5485814A (en) * 1995-03-01 1996-01-23 Wci Outdoor Products, Inc. Resetting ignition switch for a gasoline powered chain saw
WO1998003732A1 (en) * 1996-07-24 1998-01-29 Hodgson James A Power trowel handle mounted controls
US5927241A (en) * 1996-02-22 1999-07-27 Aktiebolaget Electrolux Carburetor control for an internal combustion engine
US20020174853A1 (en) * 2001-05-07 2002-11-28 Masaru Suzuki Engine control system for an outboard motor
US6550749B2 (en) 2000-05-22 2003-04-22 Dolmar Gmbh System for actuating a carburetor of an internal combustion engine
US20030075132A1 (en) * 2001-10-19 2003-04-24 Kioritz Corporation Working machine having a single operation unit
US20050257943A1 (en) * 2002-10-25 2005-11-24 Mattias Nystrom Handle joined of two sections for a hand held engine powered tool
WO2007043930A1 (en) * 2005-10-07 2007-04-19 Husqvarna Aktiebolag Carburettor start-stop mechanism
US20070221158A1 (en) * 2006-03-23 2007-09-27 Andreas Stihl Ag & Co. Kg. Carburetor arrangement for an internal combustion engine
US20100147544A1 (en) * 2008-11-20 2010-06-17 Yamabiko Corporation Work Apparatus With Internal Combustion Engine
CN101825021A (zh) * 2009-03-04 2010-09-08 安德烈亚斯.斯蒂尔两合公司 手操纵式工作器械
EP2460630A1 (de) * 2010-12-01 2012-06-06 Andreas Stihl AG & Co. KG Handgeführtes Arbeitsgerät
CN101301748B (zh) * 2007-05-09 2012-11-14 安德烈亚斯.斯蒂尔两合公司 手动控制的工作器具
CN102828835A (zh) * 2011-06-17 2012-12-19 安德烈亚斯.斯蒂尔两合公司 手操纵式工作器械
US20140019022A1 (en) * 2010-10-04 2014-01-16 Allison Transmission Inc. System For Selecting A Transmission Economy-Based Shift Schedule
CN103878753A (zh) * 2012-12-22 2014-06-25 安德烈亚斯·斯蒂尔两合公司 带有驱动马达的手持工作器具和用于运行工作器具的方法
US9074535B1 (en) 2013-12-19 2015-07-07 Kohler Co. Integrated engine control apparatus and method of operating same
US9261030B2 (en) 2013-05-20 2016-02-16 Kohler Co. Automatic fuel shutoff
US10330048B2 (en) 2016-10-30 2019-06-25 Meiying Xue Fuel enrichment simple starting device and method of carburetor

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE392950B (sv) * 1976-02-16 1977-04-25 Jonsereds Fabrikers Ab Gasreglage for forbrenningsmotor, serskilt for motorsag
US4286675A (en) * 1979-06-25 1981-09-01 Beaird-Poulan Division Of Emerson Electric Co. Narrow profile power handle for line trimmer and the like
DE3033604A1 (de) * 1980-09-06 1982-04-22 Fa. Andreas Stihl, 7050 Waiblingen Motorsaege
DE3144096A1 (de) * 1981-11-06 1983-05-19 Fa. Andreas Stihl, 7050 Waiblingen Gashebel-schaltvorrichtung
DE3935361C2 (de) * 1989-10-24 1998-12-24 Stihl Maschf Andreas Arbeitsgerät wie Motorkettensäge oder dgl., insbesondere Einhandkettensäge
JPH04194221A (ja) * 1990-11-28 1992-07-14 Fujita Corp 山留め計測の集中管理システム
JP4097383B2 (ja) * 2000-03-30 2008-06-11 落合刃物工業株式会社 把手装置およびこれを用いる刈払機
US7025034B2 (en) * 2004-04-08 2006-04-11 Electrolux Home Products, Inc. Ignition systems for portable power tools
DE102007011717B4 (de) * 2006-03-23 2016-10-20 Andreas Stihl Ag & Co. Kg Vergaseranordnung für einen Verbrennungsmotor

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US2873731A (en) * 1956-02-27 1959-02-17 Tecumseh Products Co Engine control device
US2908263A (en) * 1958-09-17 1959-10-13 Briggs & Stratton Corp Engine control

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491105A (en) * 1982-03-22 1985-01-01 Ab Electrolux Motor Aktiebolag Arrangement in an i.c. engine
US4631153A (en) * 1983-09-06 1986-12-23 Kawasaki Jukogyo Kabushiki Kaisha Throttle control device for general purpose engine
US4773371A (en) * 1987-11-03 1988-09-27 Tecumseh Products Company Override speed control having governed idle
US4936267A (en) * 1987-11-06 1990-06-26 Andreas Stihl Carburetor for an internal combustion engine
US4919091A (en) * 1988-06-29 1990-04-24 Andreas Stihl Ignition switch arrangement for an internal combustion engine having an electrical ignition system
US5209196A (en) * 1991-05-18 1993-05-11 Andreas Stihl Operating-mode position selector arrangement for internal combustion engine
US5215049A (en) * 1991-06-21 1993-06-01 Andreas Stihl Portable handheld work apparatus
US5485814A (en) * 1995-03-01 1996-01-23 Wci Outdoor Products, Inc. Resetting ignition switch for a gasoline powered chain saw
US5927241A (en) * 1996-02-22 1999-07-27 Aktiebolaget Electrolux Carburetor control for an internal combustion engine
WO1998003732A1 (en) * 1996-07-24 1998-01-29 Hodgson James A Power trowel handle mounted controls
US6550749B2 (en) 2000-05-22 2003-04-22 Dolmar Gmbh System for actuating a carburetor of an internal combustion engine
US20020174853A1 (en) * 2001-05-07 2002-11-28 Masaru Suzuki Engine control system for an outboard motor
US6892700B2 (en) * 2001-05-07 2005-05-17 Yamaha Marine Kabushiki Kaisha Engine control system for an outboard motor
US20030075132A1 (en) * 2001-10-19 2003-04-24 Kioritz Corporation Working machine having a single operation unit
US6871623B2 (en) * 2001-10-19 2005-03-29 Kioritz Corp. Working machine having a single operation unit
US20050257943A1 (en) * 2002-10-25 2005-11-24 Mattias Nystrom Handle joined of two sections for a hand held engine powered tool
US8490289B2 (en) * 2002-10-25 2013-07-23 Husqvarna Ab Handle joined of two sections for a hand held engine powered tool
WO2007043930A1 (en) * 2005-10-07 2007-04-19 Husqvarna Aktiebolag Carburettor start-stop mechanism
US20080246170A1 (en) * 2005-10-07 2008-10-09 Thomas Engman Carburetor start-stop mechanism
US7611131B2 (en) 2005-10-07 2009-11-03 Husqvarna Ab Carburetor start-stop mechanism
CN101283178B (zh) * 2005-10-07 2012-06-06 胡斯华纳有限公司 汽化器起-停机构
US20070221158A1 (en) * 2006-03-23 2007-09-27 Andreas Stihl Ag & Co. Kg. Carburetor arrangement for an internal combustion engine
US7337757B2 (en) 2006-03-23 2008-03-04 Andreas Stihl Ag & Co. Kg Carburetor arrangement for an internal combustion engine
CN101301748B (zh) * 2007-05-09 2012-11-14 安德烈亚斯.斯蒂尔两合公司 手动控制的工作器具
US20100147544A1 (en) * 2008-11-20 2010-06-17 Yamabiko Corporation Work Apparatus With Internal Combustion Engine
US8469001B2 (en) 2008-11-20 2013-06-25 Yamabiko Corporation Work apparatus with internal combustion engine
CN101825021A (zh) * 2009-03-04 2010-09-08 安德烈亚斯.斯蒂尔两合公司 手操纵式工作器械
US20100224466A1 (en) * 2009-03-04 2010-09-09 Andreas Stihl Ag & Co. Kg. Portable handheld work apparatus
US9056607B2 (en) * 2010-10-04 2015-06-16 Allison Transmission, Inc. System for selecting a transmission economy-based shift schedule
US9056605B2 (en) * 2010-10-04 2015-06-16 Allison Transmission, Inc. System for selecting a transmission economy-based shift schedule
US20140019022A1 (en) * 2010-10-04 2014-01-16 Allison Transmission Inc. System For Selecting A Transmission Economy-Based Shift Schedule
US20140188355A1 (en) * 2010-10-04 2014-07-03 Allison Transmission, Inc. System for selecting a transmission economy-based shift schedule
CN102672688A (zh) * 2010-12-01 2012-09-19 安德烈亚斯.斯蒂尔两合公司 手操纵式工作器械
EP2460630A1 (de) * 2010-12-01 2012-06-06 Andreas Stihl AG & Co. KG Handgeführtes Arbeitsgerät
CN102672688B (zh) * 2010-12-01 2016-04-06 安德烈亚斯.斯蒂尔两合公司 手操纵式工作器械
US8739894B2 (en) 2010-12-01 2014-06-03 Andreas Stihl Ag & Co. Kg Handheld work apparatus
CN102828835B (zh) * 2011-06-17 2016-08-03 安德烈亚斯.斯蒂尔两合公司 手操纵式工作器械
CN102828835A (zh) * 2011-06-17 2012-12-19 安德烈亚斯.斯蒂尔两合公司 手操纵式工作器械
CN103878753A (zh) * 2012-12-22 2014-06-25 安德烈亚斯·斯蒂尔两合公司 带有驱动马达的手持工作器具和用于运行工作器具的方法
US9636792B2 (en) 2012-12-22 2017-05-02 Andreas Stihl Ag & Co. Kg Handheld work apparatus having a drive motor for driving a work tool and method for operating said apparatus
CN103878753B (zh) * 2012-12-22 2019-01-01 安德烈亚斯·斯蒂尔两合公司 带有驱动马达的手持工作器具和用于运行工作器具的方法
US9261030B2 (en) 2013-05-20 2016-02-16 Kohler Co. Automatic fuel shutoff
US9739214B2 (en) 2013-05-20 2017-08-22 Kohler, Co. Automatic fuel shutoff
US9074535B1 (en) 2013-12-19 2015-07-07 Kohler Co. Integrated engine control apparatus and method of operating same
US10330048B2 (en) 2016-10-30 2019-06-25 Meiying Xue Fuel enrichment simple starting device and method of carburetor

Also Published As

Publication number Publication date
SE7602485L (sv) 1976-09-06
DE2509443C2 (de) 1986-06-19
DE2509443A1 (de) 1976-09-16
FR2302824B1 (de) 1980-05-23
JPS51111999A (en) 1976-10-02
JPS6341721B2 (de) 1988-08-18
SE427912B (sv) 1983-05-24
FR2302824A1 (fr) 1976-10-01

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